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This manual is distributed as an electronic manual on the following CD-ROM: CD Title: 1652C/1653B/1654B CD Rev. & Date: 9/2010 CD PN: 3798444 © 2010 Fluke Corporation. All rights reserved. FLUKE 1652C/1653B/1654B Users Manual Supplement Change #1, 56800 On page 3, add the following bullet: • Do not use in CAT III or CAT IV environments without the protective cap installed. The protective cap decreases the possibility of arc flash caused by short circuits. On page 6, under Operating th